Ferenc Erdei created NIFI-13436:
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Summary: MiNiFi C2 Flow update - Queue is dropped even component
exists in the proposed flow
Key: NIFI-13436
URL: https://issues.apache.org/jira/browse/NIFI-13436
Project: Apache NiFi
Issue Type: Bug
Components: MiNiFi
Affects Versions: 2.0.0-M3
Reporter: Ferenc Erdei
h2. Issue
When we propose a new flow for a running MiNiFi instance it first stop the
source processors and try to wait until a pre-defined graceful period to have
empty queues. If remaining items are in the queues after this period, the given
flowfiles are dropped.
This behaviour may cause data loss if the proposed flow contains some existing
components.
h2. Proposed solution
After the graceful period expires, we should drop flowfiles only from those
queues, that don't exist in the proposed flow.
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